Results 21 to 30 of about 18,698 (267)

ANALYTICAL REVIEW OF TECHNOLOGIES OF THE INDUSTRIAL DEVELOPMENT OF AQUATIC METHANOHYDRATES

Геологія і корисні копалини Світового океану, 2022
Methane hydrates are one of the most powerful reserves of unconventional sources of hydrocarbons. This is clearly evidenced by the forecast estimates of world volumes of methane in the form of gas hydrates, which many times exceed the total resources of ...
Zezekalo I.H.
doaj   +1 more source

Investigation of the influence of polyelectrolytes hydrodynamic properties on the hydrate formation process [PDF]

, 2018
One of the most perspective non-traditional sources of hydrocarbon raw materials and energy is gas hydrates (GH), which stimulates their large-scale study in many laboratories and scientific centers around the world.
Bondarenko, Volodymyr, Klymenko, Vasyl, Sai, Kateryna, Svietkina, Olena, Бондаренко, В. И., Бондаренко, В. І., Бондаренко, Владимир Ильич, Бондаренко, Володимир Ілліч, Сай, Е. С., Сай, Екатерина, Сай, К. С., Сай, Катерина   +11 more
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Density functional theory studies of hydrogen bonding vibrations in sI gas hydrates

New Journal of Physics, 2020
To analyze the vibrational modes of water and methane in structure I gas hydrates, we constructed a 178-atom supercell with two small cages of type 5 ^12 and six large cages of type 5 ^12 6 ^2 . We applied the density functional theory method to simulate
Hao-Cheng Wang, Xu-Liang Zhu, Jing-Wen Cao, Xiao-Ling Qin, Ye-Chen Yang, Tian-Xiao Niu, Ying-Bo Lu, Peng Zhang   +7 more
doaj   +1 more source

Sensitivity and Resolution of Controlled-Source Electromagnetic Method for Gas Hydrate Stable Zone

Energies, 2021
Natural gas hydrate is one of the most important clean energies and part of carbon cycle, due to the least carbon content. Natural gas hydrates depend on high pressure and low temperatures, located under seabed or permafrost. Small changes in temperature
Zhenwei Guo, Yunxi Yuan, Mengyuan Jiang, Jianxin Liu, Xianying Wang, Bochen Wang   +5 more
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Increased methane emissions from deep osmotic and buoyant convection beneath submarine seeps as climate warms

Nature Communications, 2016
Large methane hydrates reserves are found in mud volcanoes, but climate change may lead to methane release. Here, the authors show that methane adsorption creates overpressures leading to rapid recirculation of seawater, thus reducing the melting ...
Silvana S. S. Cardoso, Julyan H. E. Cartwright   +1 more
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Role of Salt Migration in Destabilization of Intra Permafrost Hydrates in the Arctic Shelf: Experimental Modeling

Geosciences, 2019
Destabilization of intrapermafrost gas hydrate is one possible reason for methane emission on the Arctic shelf. The formation of these intrapermafrost gas hydrates could occur almost simultaneously with the permafrost sediments due to the occurrence of a
Evgeny Chuvilin, Valentina Ekimova, Boris Bukhanov, Sergey Grebenkin, Natalia Shakhova, Igor Semiletov   +5 more
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The Interaction of Talc, Montmorillonite, and Silica Sand with H₂O Influences Methane Hydrate Formation

Energies, 2023
Methane hydrates in natural geological settings are commonly distributed within sediments, with a variety of minerals (such as silica sand, talc, and montmorillonite).
Ruifang Huang, Yusheng Zhao, Yiming Ma
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Adaptive modeling of methane hydrates

Procedia Computer Science, 2010
AbstractWe consider a computational model for the evolution of methane hydrates in subsurface. Methane hydrates, an ice-like compound abundant in subsea sediments and unstable in standard conditions, are an environmental hazard and simultaneously an energy source. Our multiphysics model includes multiphase multicomponent mass conservation equations and
Malgorzata Peszynska, Marta Torres, Anne Trèhu   +2 more
openaire   +1 more source

Gas hydrates: Entrance to a methane age or climate threat? [PDF]

, 2009
Methane hydrates, ice-like compounds in which methane is held in crystalline cages formed by water molecules, are widespread in areas of permafrost such as the Arctic and in sediments on the continental margins.
Abe, Y., Andruleit, H., Archer, D., Canadell, J.G., Grubler, A., Hamilton, N.T.M., Johnson, A., Kostov, V., Krey, V., Lamarque, J.-F., Langhorne, N., Nakicenovic, N., Nisbet, E.G., O'Neill, B.C., Riahi, K., Riedel, M., Wang, W., Yakushev, V.   +17 more
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Influence of temperature on methane hydrate formation [PDF]

Scientific Reports, 2017
AbstractDuring gas hydrate formation process, a phase transition of liquid water exists naturally, implying that temperature has an important influence on hydrate formation. In this study, methane hydrate was formed within the same media. The experimental system was kept at 1.45, 6.49, and 12.91 °C respectively, and then different pressurization modes ...
Peng Zhang, Qingbai Wu, Cuicui Mu
openaire   +3 more sources